/Engine/Source/Developer/TextureFormat/Public/Interfaces/ITextureFormat.h
[FEncodedTextureDescription](API\Developer\TextureFormat\Interfaces\FEncodedTextureDescription) RemoveTopMips ( const [FEncodedTextureExtendedData](API\Developer\TextureFormat\Interfaces\FEncodedTextureExtendedData) * InExtendedData, int32 InRemoveCount ) const